CN1749426A - Anti-corrosion oil pumping rod and its producing method - Google Patents
Anti-corrosion oil pumping rod and its producing method Download PDFInfo
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- CN1749426A CN1749426A CN 200410079237 CN200410079237A CN1749426A CN 1749426 A CN1749426 A CN 1749426A CN 200410079237 CN200410079237 CN 200410079237 CN 200410079237 A CN200410079237 A CN 200410079237A CN 1749426 A CN1749426 A CN 1749426A
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Abstract
The anticorrosive oil pumping rod is made of alloy steel comprising C 0.40-0.45 wt%, Mn 0.65-1.10 wt%, Si 0.15-0.35 wt%, Cr 0.80-1.10 wt%, Mo 0.15-0.25 wt%, P 0.010-0.035 wt%, S 0.015-0.040 wt% and Ni 0.015-0.045 wt%. The production process of the anticorrosive oil pumping rod includes the following steps: smelting, rolling, forging, normalizing at 830-870 deg.c for 34-44 min, tempering at 600-700 deg.c for 42-52 min, hot straightening, shot blasting, machining screw, and packing. The present invention has the advantages of small compression coefficient of the material to avoid bending, folding, crack and other forging faults, capacity of machining large rod, and excellent bearing capacity and anticorrosive performance of the oil pumping rod.
Description
Technical field
The present invention relates to a kind of anti-corrosion oil pumping rod and manufacture method thereof.
Background technology
Sucker rod is the vitals in the pumping equipment, along with oil well develops to deep-well, ultra deep well, the supporting capacity and the corrosion resistance nature of sucker rod is all had higher requirement in the last few years.
Conventional sucker rod meets API SPEC 11B standard, according to the intensity rank branch K, C, D level is arranged, because API SPEC 11B standard is not done strict regulation to material, material is adopted as domestic grade of steel: 20CrMo, 35CrMo usually.
The specification of API SPEC 11B standard code has: φ 16, φ 19, φ 22, φ 25, φ 29:
But in the last few years, many oil fields entered the exploitation later stage, and to taking out deeply, adopting direction by force and develop, at some deep-wells with have in the oil well of corrosive medium, the disconnected bar frequency of API sucker rod increases, mainly because supporting capacity is not enough and corrosion resistance causes inadequately.
Summary of the invention
The purpose of this invention is to provide anti-corrosion oil pumping rod, to improve the supporting capacity and the anti-corrosion resistance of sucker rod.
Another object of the present invention provides the manufacture method of anti-corrosion oil pumping rod.
The material of anti-corrosion oil pumping rod of the present invention is a steel alloy, contains following alloying element (weight percent) in the steel alloy,
C：0.40-0.45％，Mn：0.65-1.10％，Si：0.15-0.35％，Cr：0.80-1.10％，
Mo：0.15-0.25％，P：0.010-0.035％，S：0.015-0.040％，Ni：0.0150.045％。
The material of anti-corrosion oil pumping rod of the present invention is a steel alloy, and preferred alloy constituent content scope is (weight percent) in the steel alloy,
C：0.30-0.35％，Mn：0.60-1.20％，Si：0.15-0.35％，Cr：0.80-1.10％，
Mo：0.20-0.30％，P：0.010-0.035％，S：0.015-0.040％，Ni：1.65-2.00％。
The manufacture method of anti-corrosion oil pumping rod of the present invention, its thermal treatment process step is as follows,
A, smelting: normal pressure is smelted in existing standard equipment LR refining furnace with steel ingot down, adds alloying element in proportion;
B, rolling: normal pressure down rolls into alloy billet round steel with continuous merchant bar mill under 1180 ℃;
C, forging: under 1050 ℃ with round steel two ends jumping-up (heat-eliminating medium is an air);
D, 850 ± 20 ℃ of normalizings 34～44 minutes (with existing standard equipment JL81-07 electric furnace, heat-eliminating medium is an air);
E, 600-700 ℃ tempering 42～52 minutes (with existing standard equipment JL81-07 electric furnace, heat-eliminating medium is an air);
F, hot alignment (temperature: 300 ℃, equipment: existing straightener);
G, ball blast (equipment: existing standard equipment Q393 through type abrator);
H, screw thread processing (with existing standard equipment C3163 lathe);
I, packing.
The invention has the advantages that:
1, adopt multi-element alloyed approach to carry out the steel grades design, according to alloying element in steel effect and sucker rod to the specific requirement of steel grade, adjust the content of each alloying element in steel.
2, the needs that carry according to oil well, utilize compression factor not produce the principle of forging defects such as bending, folding, crackle less than the maximum compression coefficient that allows, carry out new design of forging die, on specification, increased big bar footpath bar, increased the space of selection for the coupling of multistage sucker rod in the deep-well.
3, at new steel grade, according to thermal treatment process to the influence of the microstructure of steel and microstructure to the sucker rod Effect on Performance, make optimum thermal treatment process: 850 ± 20 ℃ of normalizing+600-700 ℃ of tempering, utilize the sucker rod of this explained hereafter to have good supporting capacity and corrosion resistance.
Anti-corrosion oil pumping rod of the present invention is applicable to middle heavy lift in some middle-deep wells and moderate corrosive oil well.
The anti-corrosion oil pumping rod that the present invention produces has stronger supporting capacity, mechanical property:
Tensile strength: 827-965MPa
Yield strength: 〉=620MPa
Unit elongation: 〉=10%
Relative reduction in area: 〉=40%
Description of drawings
Fig. 1 is that diameter of the present invention is the synoptic diagram of 32 anti-corrosion oil pumping rod.
Fig. 2 is that diameter of the present invention is the synoptic diagram of 38 anti-corrosion oil pumping rod.
Embodiment
The following examples can make those skilled in the art more fully understand the present invention, but do not limit the present invention in any way.
Embodiment 1: the manufacture method of anti-corrosion oil pumping rod, and its thermal treatment process step is:
A, smelting: normal pressure is smelted in existing standard equipment LR refining furnace with steel ingot down, add alloying element: C:0.40-0.45% according to following weight percent, Mn:0.65-1.10%, Si:0.15-0.35%, Cr:0.80-1.10%, Mo:0.150.25%, P:0.010-0.035%, S:0.015-0.040%, Ni:0.015-0.045%.
B, rolling: normal pressure down rolls into alloy billet round steel with continuous merchant bar mill under 1180 ℃;
C, forging: under 1050 ℃ with round steel two ends jumping-up (heat-eliminating medium is an air);
D, 850 ± 20 ℃ of normalizings 34～44 minutes (with existing standard equipment JL81-07 electric furnace, heat-eliminating medium is an air);
E, 600-700 ℃ tempering 42～52 minutes (with existing standard equipment JL81-07 electric furnace, heat-eliminating medium is an air);
F, hot alignment (temperature: 300 ℃, equipment: existing straightener);
G, ball blast (equipment: existing standard equipment Q393 through type abrator);
H, screw thread processing (with standard equipment C3163 lathe);
I, packing.
Embodiment 2: the manufacture method of anti-corrosion oil pumping rod, and its thermal treatment process step is:
A, smelting: normal pressure is smelted in the LR refining furnace with steel ingot down, add alloying element: C:0.30-0.35% according to following weight percent, Mn:0.601.20%, Si:0.15-0.35%, Cr:0.80-1.10%, Mo:0.20-0.30%, P:0.0100.035%, S:0.015-0.040%, Ni:1.65-2.00%.
B, rolling: normal pressure down rolls into alloy billet round steel with continuous merchant bar mill under 1180 ℃;
C, forging: under 1050 ℃ with round steel two ends jumping-up (heat-eliminating medium is an air);
D, 850 ± 20 ℃ of normalizings 34～44 minutes (with existing standard equipment JL81-07 electric furnace, heat-eliminating medium is an air);
E, 600-700 ℃ tempering 42～52 minutes (with existing standard equipment JL81-07 electric furnace, heat-eliminating medium is an air);
F, hot alignment (temperature: 300 ℃, equipment: existing straightener);
G, ball blast (equipment: existing standard equipment Q393 through type abrator);
H, screw thread processing (with standard equipment C3163 lathe);
Packing.
As shown in Figure 1, the present invention can make the anti-corrosion oil pumping rod product that specification is φ 32: it is 1-1/8 " sucker rod screw thread (nominal diameter is 1-9/16 " that body of rod size φ 32mm, head forge post-treatment).
As shown in Figure 2, the present invention also can make the anti-corrosion oil pumping rod product that specification is φ 38: it is 1-1/8 " sucker rod screw thread (nominal diameter is 1-9/16 " that body of rod size φ 38mm, head forge post-treatment)
These two kinds of anti-corrosion oil pumping rods have better supporting capacity.
Claims (3)
1, a kind of anti-corrosion oil pumping rod, it is characterized in that: its material is a steel alloy, contain following alloying element (weight percent) in the steel alloy, C:0.40-0.45%, Mn:0.65-1.10%, Si:0.15-0.35%, Cr:0.80-1.10%, Mo:0.15-0.25%, P:0.010-0.035%, S:0.015-0.040%, Ni:0.015-0.045%.
2, a kind of anti-corrosion oil pumping rod, it is characterized in that: its material is a steel alloy, contain following alloying element (weight percent) in the steel alloy, C:0.30-0.35%, Mn:0.60-1.20%, Si:0.15-0.35%, Cr:0.80-1.10%, Mo:0.20-0.30%, P:0.010-0.035%, S:0.015-0.040%, Ni:1.65-2.00%.
3, the manufacture method of claim 1 or 2 described anti-corrosion oil pumping rods, it is characterized in that: the thermal treatment process step is as follows,
A, smelting: normal pressure is smelted in standard equipment LR refining furnace with steel ingot down, adds alloying element in proportion;
B, rolling: normal pressure down rolls into alloy billet round steel with continuous merchant bar mill under 1180 ℃;
C, forging: under 1050 ℃ with round steel two ends jumping-up (heat-eliminating medium is an air);
D, 850 ± 20 ℃ of normalizings 34～44 minutes (with standard equipment JL81-07 electric furnace, heat-eliminating medium is an air);
E, 600-700 ℃ tempering 42～52 minutes (with standard equipment JL81-07 electric furnace, heat-eliminating medium is an air);
F, hot alignment (temperature: 300 ℃, equipment: straightener);
G, ball blast (equipment: Q393 through type abrator);
H, screw thread processing (with standard equipment C3163 lathe);
I, packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410079237XA CN100351419C (en) | 2004-09-15 | 2004-09-15 | Anti-corrosion oil pumping rod and its producing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410079237XA CN100351419C (en) | 2004-09-15 | 2004-09-15 | Anti-corrosion oil pumping rod and its producing method |
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| CN1749426A true CN1749426A (en) | 2006-03-22 |
| CN100351419C CN100351419C (en) | 2007-11-28 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101333624B (en) * | 2007-06-25 | 2010-05-19 | 宝山钢铁股份有限公司 | Anti-H2S stress corrosion high pressure resistant forgings and method for manufacturing same |
| CN101187295B (en) * | 2006-11-21 | 2010-10-13 | 安东石油技术（集团）有限公司 | Super high intensity anti-corrosion pumping rod production method |
| CN102699149A (en) * | 2012-06-19 | 2012-10-03 | 河南兴华机械制造有限公司 | Method for straightening shaft piece deformed after heat treatment |
| CN102717240A (en) * | 2012-07-06 | 2012-10-10 | 常熟市石油固井工具有限公司 | Manufacture method of novel sucker rod |
| CN107470858A (en) * | 2017-07-13 | 2017-12-15 | 安徽众鑫科技股份有限公司 | A kind of automobile gearbox input shaft processing method |
| CN113275835A (en) * | 2021-05-18 | 2021-08-20 | 大庆市龙兴石油机械有限公司 | HY-level sucker rod production method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61223164A (en) * | 1985-03-29 | 1986-10-03 | Sumitomo Metal Ind Ltd | High strength steel for oil well having superior resistance to sulfide stress corrosion cracking |
| FR2780418B1 (en) * | 1998-06-29 | 2000-09-08 | Aubert & Duval Sa | CEMENTATION STEEL WITH HIGH INCOME TEMPERATURE, PROCESS FOR OBTAINING SAME AND PARTS FORMED THEREFROM |
| CN1152147C (en) * | 2001-01-17 | 2004-06-02 | 大连金牛股份有限公司 | Unmodified steel for sucker rod and its making technology |
| CN1391020A (en) * | 2001-06-07 | 2003-01-15 | 天津钢管公司 | Medium-strength sleeved petroleum pipe for hot recovery well of thick oil and its making method |
| CN1390972A (en) * | 2001-06-07 | 2003-01-15 | 天津钢管公司 | Ultrahigh-strength low-alloy steel |
-
2004
- 2004-09-15 CN CNB200410079237XA patent/CN100351419C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187295B (en) * | 2006-11-21 | 2010-10-13 | 安东石油技术（集团）有限公司 | Super high intensity anti-corrosion pumping rod production method |
| CN101333624B (en) * | 2007-06-25 | 2010-05-19 | 宝山钢铁股份有限公司 | Anti-H2S stress corrosion high pressure resistant forgings and method for manufacturing same |
| CN102699149A (en) * | 2012-06-19 | 2012-10-03 | 河南兴华机械制造有限公司 | Method for straightening shaft piece deformed after heat treatment |
| CN102717240A (en) * | 2012-07-06 | 2012-10-10 | 常熟市石油固井工具有限公司 | Manufacture method of novel sucker rod |
| CN107470858A (en) * | 2017-07-13 | 2017-12-15 | 安徽众鑫科技股份有限公司 | A kind of automobile gearbox input shaft processing method |
| CN107470858B (en) * | 2017-07-13 | 2020-05-15 | 安徽众鑫科技股份有限公司 | Machining method for input shaft of automobile gearbox |
| CN113275835A (en) * | 2021-05-18 | 2021-08-20 | 大庆市龙兴石油机械有限公司 | HY-level sucker rod production method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100351419C (en) | 2007-11-28 |
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Owner name: CHINA PETROLEUM +. NATURAL GAS CO., LTD. Free format text: FORMER OWNER: YUMEN PETROL ADMINISTRATION Effective date: 20120316 |
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Free format text: CORRECT: ADDRESS; FROM: 735200 JIUQUAN, GANSU PROVINCE TO: 100007 DONGCHENG, BEIJING |
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Effective date of registration: 20120316 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: China Petroleum & Natural Gas Co., Ltd. Address before: 735200 middle reaches of Yumen City, Gansu Province Patentee before: Yumen Oil Field Administration |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20071128 Termination date: 20160915 |